TEPCat: K2-133c


This page summarises the information held within TEPCat for the transiting planetary system K2-133c. Please see here for descriptions of the quantities given below.


Discovery and basic observable quantities:
Quantity Value Unit
Reference of discovery paper 2018MNRAS.473L.131W  
Date of discovery paper 2017 / 10 / 14 y / m / d
Right ascension 04 40 35.63 h m s
Declination +25 00 36.1 d m s
V-band apparent magnitude 14.00 mag
K-band apparent magnitude 10.28 mag
Transit duration 0.068
( 1.63 )
Transit depth 0.10 %
Time of mid-transit   2457823.7686 ± 0.0011     HJD or BJD
Orbital period 4.86784 ± 0.00012 days
Reference for orbital ephemeris   xxx1905052063  


Physical properties from the most recent detailed study:
Quantity Value Unit
Stellar effective temperature 3655 ± 80 K
Stellar metal abundance ([Fe/H] or [M/H])   dex
Stellar mass 0.455 ± 0.022   Msun
Stellar radius 0.461 +0.011 −0.01 Rsun
Stellar logarithmic surface gravity c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity  
Orbital semimajor axis   0.04341 +0.00034 −0.00035  AU
Planetary mass Mjup
Planetary radius 0.143 ± 0.008
( 1.603 ± 0.090 )
Planetary surface gravity m/s2
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study arXiv:1905.05206  


K2-133c does not have an entry in the catalogue of orbital obliquity measurements.


K2-133c has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.


Page generated on 2021/11/15           John Southworth   (Keele University, UK)